http://WWW.diamondclubdjs.COM.AU PLEASE CHECK MY WEBSITE 🙂 hie guys this is my new exhaust for my kawasaki ninjs 250r .. i have tried many other exhaust for this bike and none come close to the m4 🙂 this sounds crazy . cars and others move away from u cause they can here u a mile away .. and best part is its still under LEGALL limit